Publications by E.T. Oswald

Vegetation development on skid trails and burned sites in southeastern British Columbia

Sat, 26 Aug 2000

Vegetation development, including both planted and natural tree seedlings, was examined over a 5-year period on an area in the ESSFmw subzone of the Nelson Forest Region which was clearcut, skid logged, burned, and planted with 2+0, 313, Engelmann spruce. Study sites included the cutbank, mid-trail, and sidecast portions of the skid trails and the intervening prescribed burned area. Fireweed was the most prominent invading species, and affected tree growth, particularly on the sidecast, by shading and crowding the trees. Black huckleberry, regenerating from root stalks, was common on the burned sites, but had marginal influence on Engelmann spruce development over 5 years. The best tree growth occurred on the burned sites, followed by the sidecast, mid-trail, and cutbank sites. Consideration should be given to omitting the cutbank planting site and moving the mid-trail planting site inward on slopes of 30% or more.

Vegetation development following site preparation in the ESSFwm subzone of Glenogle Creek, Nelson forest region, British Columbia: A case study

Sat, 26 Aug 2000

Forest site classification activities in northern Canada

Sat, 26 Aug 2000

Historically, site classification north of 60°N. Lat. includes related activities conducted by geologists over the last century, particularly the information presented on surficial materials. Ecological land classification provides a technique suitable for evaluating the capability of the land base to satisfy the requirements of various renewable resource sectors. Ecological Land Surveys that included an assessment of forest capability have been used over much of northern Canada. A forest inventory, or cover mapping, has been done for part of the forest environment. The demands on the forest resource are increasing, not only for the utilization of wood products, but also for recreational facilities, tourism, and wildlife habitat. Forest site classification based on ecological factors is essential to provide an informed basis for making resource management and utilization decisions. Some site classification techniques are discussed, and recommendations made in support of continuing classification and surveys for more intensive management and for the preservation and analyses of ecological reserves.

Activités de gestion des végétaux de Forêts Canada. Recueil de résumés 1989-1990

Wed, 20 Jul 2005

Forestry Canada has been involved with vegetation management for reforestation following logging for several years. Much of the initial work was centered around the use and registration of herbicides. Public concern about the use of chemicals has fostered an effort to find alternative vegetation control techniques. Several types of equipment have been used for site preparation across Canada, but further assessments are required on the impact much of the equipment has on the site. The primary objective of site preparation is to enhance the establishment and growth of the next crop of trees. The use of improved planting stock and techniques can alleviate some aspects of site preparation on some sites. Prescribed fire has several attributes suitable for site preparation, but due to environmental concerns such as smoke emission and nutrient loss, should be used only where other techniques are not available. Summaries of past and present research in vegetation management conducted by Forestry Canada are presented. Most studies are still in progress, thus few conclusions are given. The summaries are arranged alphabetically by senior author within each Forestry Canada region beginning with eastern Canada and progressing to the west coast. The final chapter attempts to summarize the work being done, and presents a table to assist in locating personnel working on specific aspects of vegetation management. The appendices provide addresses to contact Forestry Canada personnel in more information is desired about a study. We also encourage personnel of other agencies working on vegetation management to cooperate with the ongoing task of keeping abreast of what is being done in the field by submitting summaries of their work for inclusion in our database.

Vegetation management activities of Forestry Canada

Tue, 19 Jul 2005

Theoretical overview of successional considerations in vegetation management

Sat, 26 Aug 2000

Vegetation establishment during 5 years following wildfire in northern British Columbia and southern Yukon Territory

Sat, 26 Aug 2000

A study on revegetation following wildfires was conducted on four fires near the Yukon Territory - British Columbia border (60' N. Lat.). One wildfire occurred at Aishihik junction off the Alaska Highway in south-central Yukon in 1980; and three fires occurred near Watson Lake, Yukon Territory in 1982 - one in Yukon and two in British Columbia. This report covers the first 5 years of vegetation succession on 47 plots established in the areas burnt by these four fires. Coniferous tree seedlings or aspen juveniles appeared on all plots within 3 years, and varied in density from 700 to 80 100 juveniles/ha in the fifth year. Shrubs, mostly regenerating from root stalks and rhizomes, were frequently the tallest plants. Forbs did not appear to be major competitors as some populations would attain a peak coverage during the second or third year and then diminish, while others remained with low coverage. A moss, Ceratodon purpureus, provided the most coverage of all species on most sites. The stable communities on a site can apparently be predicted after about 5 years based on the species of trees, shrubs, and forbs present, but additional monitoring is required to confirm this and document the various seral stages.

The Canadian Vegetation Classification System: First Approximation

Sat, 26 Aug 2000

The Yukon forest reconnaissance inventory 1985

Sat, 26 Aug 2000

Field guide to the native trees of Manitoba

Tue, 21 Oct 2003

Wetlands of Pacific Canada

Sat, 26 Aug 2000

Forest communities in Lake Laberge ecoregion, Yukon Territory

Sat, 26 Aug 2000

Mapping forest landscapes in the Yukon Territory, Canada

Sat, 26 Aug 2000

Vegetation studies in the Yukon Territory

Sat, 26 Aug 2000

A proposed vegetation classification system for Canada

Sat, 26 Aug 2000

Preharvest vegetation and soils of Carnation Creek Watershed

Sat, 26 Aug 2000

Ecological relationships within the discontinuous permafrost zone of southern Yukon Territory

Sat, 26 Aug 2000

Revegetation of Carnation Creek Watershed

Sat, 26 Aug 2000

Ecological land classification in the Yukon

Sat, 26 Aug 2000

Vegetation of East Kluane planning area

Wed, 02 May 2012

Chemosystematic studies in the genus Picea, V: leaf oil terpene composition of white spruce from the Yukon Territory

Sat, 26 Aug 2000

Yukon ecological land evaluation

Sat, 26 Aug 2000

Ecoregions of Yukon Territory

Sat, 26 Aug 2000

A reconnaissance level biophysical survey of the Yukon Territory was conducted during 1975. Twenty-two ecoregions were recognized and described in terms of the biophysical data available, either collected during the survey or from literature reviewed. The primary feature used to segregate and describe the ecoregions was the vegetation on different landforms under a regional climate. This was augmented by describing the distribution and extent of permafrost, geological history and terrain features.

The lower elevation terrain in southern Yukon Territory is mostly forested with a variety of boreal coniferous and hardwood tree species. With increasing elevation and latitude, the tree density declines and the dominant vegetation becomes arctic and alpine tundra. Shrub communities have a high frequency and cover, especially across the ecotone from forest to tundra. Ground vegetation, primarily moss cover, plays a significant role in the development and persistence of permafrost.

The relationship among several biophysical parameters is discussed in light of available information. Research of a more intensive nature is necessary to establish more detailed correlations.

Gabriola Island and neighbouring islands. A landscape analysis

Sat, 26 Aug 2000

The intrinsic physical and biological properties pertinent to land use were analyzed on Gabriola Island and the Flat Top and DeCourcy groups, located in the Strait of Georgia. Ten landscape units, plus a designation for water bodies, were depicted on a map. Each landscape unit was described according to its capability to support various land uses. Since the primary purpose of the study was to provide background information for developmental planning, emphasis was placed on factors relevant to residential development. The open space concept can allow a certain amount of residential development, while maintaining aesthetically pleasing habitation and providing recreational activities for residents and visitors. Domestic water supply, especially during the summer, will be a primary factor limiting residential expansion. Gabriola Island has some natural petroglyphs that should be available for public viewing, but safeguarded from vandalism.

Western community. A landscape analysis for urban development

Sat, 26 Aug 2000

The population of the Western Community is expected to increase from the present 22,000 to about 54,000 by 1995. To accommodate such an increase in an orderly fashion and with minimal damage to the environment, planning and provision of services must precede the development. The purpose of this study is to provide the environmental background for planning for the expected growth. Eleven landscape units were described in terms of their environmental and vegetational characteristics and each unit was evaluated for its suitability for development, resulting social costs and the impact of urbanization and resulting human activity on the environment, soils and vegetation. A map was prepared showing the distribution of the landscape units throughout the study area.

Biophysical analysis of the Yukon Territory

Sat, 26 Aug 2000

Terrain analysis from landsat imagery

Sat, 26 Aug 2000

An evaluation of the use of unenhanced Landsat-1 imagery for depicting features of the earth's surface, which is important to resource management, was conducted in central British Columbia. Sampling was conducted, using as many as six scales of photography, along with ground observations. Some features, such as water bodies, rivers, drainage systems, mountains, snow fields and contrasting vegetation types, can be readily distinguished. Other features, such as major powerlines, roads and railroads, can often be seen, especially when they pass through forested areas, but may be confused on some land types. Within the forested areas, tonal differences reveal broad age- and density-classes. Lodgepole pine was the only species that could be distinguished with any degree of reliability, and only when it occurred in large pure stands. Landsat imagery is most useful in monitoring dynamic events, such as forest harvesting, alterations in Lake levels, snow distribution and some erosion patterns.

Native vegetation in British Columbia's capital region

Sat, 26 Aug 2000

Native plant communities in the Victoria Metropolitan Area vary from Garry oak parkland to majestic coniferous forests. This range of communities corresponds to a climatic gradient extending from the dry, Mediterranean climate of the southeastern coastal lowlands to the moister climate of westerly and high elevation areas. Native vegetation in British Columbia's Capital Regional District offers distinctive and attractive settings for various land uses.

Vegetation of Carnation Creek streambed

Sat, 26 Aug 2000

The Highland landscape. An ecological evaluation of land suitability for urban development in the southern portion of the Highland District, Capital Region of BC

Sat, 26 Aug 2000

General information, history, climate, physiography, geology, soils and hydrology of the area proposed for development in the southern Highland District of the Capital Region of British Columbia are summarized. Eight landscape units were described in terms of their physical, environmental and vegetational characteristics, and a map was prepared showing the distribution of these units throughout the area. Each landscape unit was evaluated for its suitability for the proposed development, social costs and the impact of urbanization and resulting human activity on the environment, soils and vegetation. The purpose of this study is to provide the environmental background for planning a community in an area covered entirely by second-growth forest.

Evaluation of ERTS imagery for vegetation interpretation in British Columbia

Sat, 26 Aug 2000

A preliminary evaluation of ERTS imagery for forest land management in British Columbia

Sat, 26 Aug 2000

Saltspring Island. A landscape analysis

Sat, 26 Aug 2000

The physical and vegetation characteristics of Saltspring Island are described in terms of landscape associations, with each association depicting a particular range of soil conditions, parent materials and plant communities. For planning purposes, each association is composed of one or more landscape units. Based on the physical and biological characteristics of each landscape unit and on the interrelationship of units within an association, some use suitabilities are outlined. Some management considerations, illustrating the kinds of problems and assets that may be encountered with a particular unit for a given use, are included.

Vegetation and soils of Carnation Creek watershed (Upper Section)

Sat, 26 Aug 2000

Native vegetation

Tue, 17 Jun 2008

Vegetation and soils of Carnation Creek Watershed (A Progress Report)

Tue, 17 Jun 2008

Vegetation of Nimpkish Valley pilot project area. a preliminary analysis

Wed, 28 May 2008

Forest cover anomalies in the Peace River district British Columbia

Wed, 27 Sep 2006

Jack pine in southeastern Manitoba: a compendium of research, 1967-1970. I. Introduction

Tue, 22 Aug 2000

Soil acarine fauna of southeastern Manitoba II. Riparian communities

Thu, 29 Jan 2004

Acarine fauna in southeastern Manitoba. I: Forest soils.

Wed, 28 Oct 2009

Cormorant Lake biophysical project. Data from field Discussion. Can. Land Inventory Project for Manitoba. (Mimeographed report)

Mon, 12 May 2008

Acarine fauna in southeastern Manitoba. I. Forest soils

Fri, 11 Apr 2008

Field guide to the native trees of Manitoba. (Mimeographed report)

Fri, 11 Apr 2008

Land classification for land evaluation: Cormorant Lake pilot project

Tue, 18 Nov 2003